Sodium Tripolyphosphate Anhydrous Extrapure
STPP
Product Code. |
02535 |
Grade |
Extrapure |
Purity |
CAS No. |
7758-29-4 | |
Molecular Formula |
Na5O10P3 |
Molecular Weight |
367.86 |
H.S.Code |
2835.31000 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White powder |
Odour |
Odorless |
| pH value |
9.5 - 10.3 at 1 g/l at 20 °C |
Melting point/ Freezing point [°C] |
622 °C |
Density [g/cm3] |
> 1.5 |
| Solubility in water [% weight] |
145 g/l (20°C) |
Packaging
Specification
| Appearance | White powder |
| Total P2O5 w/w | Min 56% |
| Tripoly w/w | Min 90% |
| pH (1% solution in water) | 9 - 10 |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338